Home / 140,412.41-193,742.25-79,981.73

Finding the Fourth Proportional to 140,412.41, 193,742.25 and 79,981.73

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Solution

The fourth proportional to 140,412.41, 193,742.25 and 79,981.73 is: 110,359.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,412.41 : 193,742.25 = 79,981.73 : x
  2. Step 2: Convert to fraction form
    140,412.41/193,742.25 = 79,981.73/x
  3. Step 3: Cross multiply
    140,412.41x = 193,742.25 × 79,981.73
  4. Step 4: Simplify right side
    140,412.41x = 15,495,840,329.09
  5. Step 5: Solve for x
    x = 15,495,840,329.09/140,412.41
  6. Step 6: Final answer
    x = 110,359.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.